Convert between PSI, bar, kPa, atm and other pressure units.
Result
2.2063
Bar
Bar
2.2063
Kilopascals
220.6323
Atmospheres
2.1775
mmHg
1,654.8831
inHg
65.1527
Pressure conversions are a common requirement in many fields, from automotive maintenance to scientific research. In the UK, you'll often encounter pressure measured in Pounds per Square Inch (PSI), especially for tyre pressures. However, the metric system's bar is standard in Europe and widely used in engineering and meteorology. Understanding how to convert between them is essential.
This free tool from Calculator Site makes it easy to switch between PSI, bar, kilopascals (kPa), atmospheres (atm), and more. Whether you're checking your car's tyres or working on a technical project, you can get a quick and accurate conversion. For other useful conversions, check out our Temperature Converter.
Common Tyre Pressures
Most passenger car tyres should be inflated to between 30 and 35 PSI. Always check the sticker on the driver-side door jamb or your vehicle's manual for the manufacturer's specific recommendation. Under-inflation can be dangerous and increase fuel consumption, a cost you can track with our Fuel Cost Calculator.
Different units are standard in different contexts. Here are a few key reference points to help you understand the scale of various pressure measurements.
14.504 PSI
Equivalent to 1 Bar
1013.25 hPa
Standard sea level pressure
33-35 PSI
Typical road bike tyre pressure
How to use this Calculator Site tool
Simply enter the value you want to convert in the input field. Select the unit you are converting from and the unit you want to convert to using the dropdown menus. The main result will be displayed prominently, and a table showing the equivalent value in all other available units will appear below. It is a fast and simple way to handle your pressure conversion needs.
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